Review on Canon EF-S 17-55mm f/2.8 IS USM Lens - Compatible with Canon DSLR Cameras (Lens Only) by Hiral Yadav ᠌

If you have a Canon 60d or a similar crop camera with a Canon 18-135mm kit lens, I do not advise you to buy. The minimum difference in aperture ratio, the quality of the stabilizer, in my subjective opinion, is an order of magnitude worse than a kit lens. I also compared it with Canon 50mm 1.8 - a fix without a stabilizer, the 50mm picture is transparent and a razor in sharpness, if you managed to fix your hands. Focusing on many points due to the shallow depth of field is unpredictable. I expected that it would become a universal wide-angle / portrait lens for studio shooting, but alas, the number of sharpness misses due to a strange stabilizer is even more than 50mm which has no IS.